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Reducing the environmental risks related to phosphorus surplus resulting from greenhouse cucumber production in China

文献类型： 外文期刊

作者： Guan, Xilin 1 ; Liu, Chuanyun 2 ; Li, Yan 3 ; Wang, Xiaozhong 1 ; Liu, Yumin 3 ; Zou, Chunqin 2 ; Chen, Xinping 1 ; Zhang, Wei 1 ;

作者机构： 1.Southwest Univ, Acad Agr Sci, Coll Resources & Environm, Key Lab Efficient Utilizat Soil & Fertilizer Reso, Chongqing 400715, Peoples R China

2.China Agr Univ, Coll Resources & Environm Sci, Key Lab Plant Soil Interact, MOE, Beijing 100193, Peoples R China

3.Shandong Acad Agr Sci, Inst Agr Resources & Environm, Jinan 250100, Peoples R China

4.Southwest Univ, Interdisciplinary Res Ctr Agr Green Dev Yangtze R, Chongqing 400715, Peoples R China

关键词： Nutrient management; Phosphorus surplus; Environmental risk; Net ecosystem economic benefits; Greenhouse cucumber

期刊名称：JOURNAL OF CLEANER PRODUCTION （ 影响因子：11.072； 五年影响因子：11.016 ）

ISSN： 0959-6526

年卷期： 2022 年 332 卷

页码：

收录情况： SCI

摘要： Excessive phosphorus (P) inputs from manure and synthetic fertilizers leads to high environmental risk in greenhouse vegetable production systems. In the current study, we determined whether a system of P fertilization that attempts to achieve a zero-P surplus balances agronomic, economic, and environmental concerns. A field experiment was conducted to evaluate the potential of integrated inorganic and organic nutrient management to provide both high yield and minimal environmental risk in a typical region of greenhouse vegetable production in China. Three treatments were compared: farmers' practice (FP), current recommended nutrient management (CRNM), and designed balanced nutrient management (DBNM, with P input optimized based on crop demand). The results indicated that in the greenhouse cucumber production system, the seasonal P surplus of FP was as high as 410 kg P ha(-1); this increased the movement of P to the subsoil, causing a high risk of P loss, i. e., a P index >9, and a high eutrophication potential (87.4 kg PO4-eq ha(-1)). Compared with FP, CRNM (which had a 76% lower P fertilizer input) significantly reduced the P surplus, the risk of P loss, and the eutrophication potential, and increased yield incomes and net ecosystem economic benefits by 18.0% and 31.8%, respectively. Compared with CRNM, DBNM significantly reduced the P surplus by 84.5% and the environmental damage cost by 19.0%, while increased the input cost by 23.0%. Therefore, the DBNM strategy is recommended in greenhouse vegetable production to reduce the P surplus and environmental costs, and to obtain high yield and economic benefits.

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